Pleurothallis marthae Luer & R. Escobar 1996 SUBGENUS Pleurothallis SECTION Macrophyllae-Fasciculatae Lindl 1859

Photo by Eric Hunt

Flower Closeup

Yellow Flower Form

Photo courtesy of Patricia Harding


Common Name Martha's Pleurothallis [Sra Martha Posada de Robledo Colombian cultivator of species]

Flower Size 2" [5cm]

Found in Colombia as a large sized [one of the largest of the genus], cold growing epiphyte with elongated, stout, erect stems carrying a single, apical spreading, thick, broadly ovoid leaf that blooms in the spring and summer and on an inflorescence that arises from the base of the leaf and is short and has a single succesive flower that is held close to the leaf arising on both old and new leaves.

A giant species that has broadly, deeply cordate leaves and carries a few flowered fascile of large showy, gaping rose colored flowers with broad spiculate petals with rouned apices, and a tranverse, convex, rugose-verrucose lip. Differs from the closely related P imperialis by the petals and lip which are smooth.

Synonyms Acronia marthae [Luer & Escobar] Luer 2005

References W3 Tropicos, Kew Monocot list , IPNI ; Native Colombian Orchids Vol 3 COS 1991 photo fide; Orchid Australia Vol 12 No 5 2000 photo; Icones Pleurothallidinarum XXVII Systematics of Dryadella and Acronia Section Macrophyllae-Fasciculatae Luer 2005 drawing as Acronia marthae drawing fide; AOS Bulletin Vol 75 No 11 2006 photo fide; An Illustrated Field Guide to the Orchids of the Yotoco Forest Reserve Colombia Kolanowska, Escobar, Sanchez & Szlachetko 2011 as Zosterophyllanthes marthae drawing/photo fide; LANKESTERIANA 13(3) 2014 photo fide Orchid Digest Vol 79 #3 2015 photo fide; AOS Bulletin Vol 86 # 1 2017 photo fide;